lingering winter cold
Refers to the cold that remains in early spring, after the worst of winter has passed. Often used in literary or seasonal contexts.
How are you spending these days of lingering winter cold?
Even though it's March, the lingering cold is severe.
残暑 is lingering summer heat felt after autumn officially begins, while 余寒 is lingering winter cold felt after spring officially begins.
Compound of 余 (yo, 'remaining, lingering') and 寒 (kan, 'cold'). The exact historical derivation is uncertain, but the word follows a common Sino-Japanese pattern for describing lingering seasonal conditions.